444582666 has 48 divisors (see below), whose sum is σ = 1056987360. Its totient is φ = 133932960.

The previous prime is 444582659. The next prime is 444582667. The reversal of 444582666 is 666285444.

It is not an unprimeable number, because it can be changed into a prime (444582667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27765 + ... + 40743.

It is an arithmetic number, because the mean of its divisors is an integer number (22020570).

Almost surely, 2^444582666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444582666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528493680).

444582666 is an abundant number, since it is smaller than the sum of its proper divisors (612404694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444582666 is a wasteful number, since it uses less digits than its factorization.

444582666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171 (or 13168 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 444582666 is about 21085.1290249787. The cubic root of 444582666 is about 763.2219322607.

The spelling of 444582666 in words is "four hundred forty-four million, five hundred eighty-two thousand, six hundred sixty-six".